ClassID:

225942

H04L27/1525 - CPC Classification

Classification description:

Modulated-carrier systems; Frequency-modulated carrier systems, i.e. using frequency-shift keying; Demodulator circuits; Receiver circuits with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements using controlled oscillators, e.g. PLL arrangements using quadrature demodulation

Recent Application in this class:
#1
20250300803
2025-09-25

PROGRAMMABLE DELAY-LOCKED LOOP (DLL) THAT UTILIZES A LOW POWER PHASE DETECTOR

#2
20220140994
2022-05-05

Coherent detection-based high-speed chaotic secure transmission method

#3
20200274744
2020-08-27

Receive device, recording medium for receiving signal

#4
20200186403
2020-06-11

Phase error reduction in a receiver

#5
20200092148
2020-03-19

Phase error reduction in a receiver

#6
20200028722
2020-01-23

Methods and apparatus for wideband and fast chirp generation for radar systems

#7
20190288887
2019-09-19

Low-power receiver for FSK back-channel embedded in 5.8GHz Wi-Fi OFDM packets

#8
20180210068
2018-07-26

Dual frequency FMCW lidar and method

#9
20180035332
2018-02-01

Method and apparatus for handling collisions in next generation communication system

#10
20170329928
2017-11-16

Method for high-speed parallel processing for ultrasonic signal by using smart device

#11
20170302318
2017-10-19

FM reception device, FM reception method for receiving FM signals

#12
20170237549
2017-08-17

Direct digital frequency generation using time and amplitude

#13
20170163356
2017-06-08

Calibration method and calibration circuit

#14
20160373162
2016-12-22

Method, apparatus and computer program for determining a time of arrival

#15
20160261401
2016-09-08

Direct digital frequency generation using time and amplitude

#16
20160226686
2016-08-04

RECEIVING APPARATUS AND RECEIVING METHOD

#17
20150256369
2015-09-10

OOK modulation device and wireless transmitting device including the same

#18
20150236878
2015-08-20

FM receiver that receives FM signal and method for receiving FM signal

#19
20150207654
2015-07-23

Intermediate frequency receiver with dynamic selection of the intermediate frequency used

#20
20150172082
2015-06-18

IQ mismatch compensation

#21
20150139363
2015-05-21

Frequency-shift keying receiver

#22
20140307835
2014-10-16

Carrier frequency and phase recovery in quadrature encoded E-band communications

#23
20130034193
2013-02-07

Method and device for demodulating complex carriers

#24
20120045023
2012-02-23

Low rate, direct conversion FSK radio-frequency signal receivers

#25
20110243277
2011-10-06

DEVICES AND METHODS IMPLEMENTING FREQUENCY OFFSET DETERMINATION FOR FSK RECEIVERS

#26
20110129036
2011-06-02

FM detector, signal interpolation method, and related program

#27
20100255799
2010-10-07

FSK modulation signal receiver with high sensitivity in low rate mode

#28
20100239051
2010-09-23

Automatic frequency correction

#29
20100202569
2010-08-12

RADIO RECEIVER

#30
20100119015
2010-05-13

Suppressing interference for wireless reception and improvements relating to processing a frequency shift keyed signal

#31
20090122919
2009-05-14

Receiver circuit, application of a first and a second proportional element of a digital PLL structure, and method for receiving a frequency-shift keyed signal

#32
20090052592
2009-02-26

Method and Arrangement for Recovering a Binary DC-Free Code From a Frequency Modulated Signal

#33
20080049870
2008-02-28

RFID decoding subsystem with decode module

#34
20070201588
2007-08-30

Suppressing interference for wireless reception and improvements relating to processing a frequency shift keyed signal

#35
20070041479
2007-02-22

Apparatus for determining a frequency offset error and receiver based thereon

#36
20060153284
2006-07-13

Method and apparatus for a frequency agile variable bandwidth transceiver

#37
20060062331
2006-03-23

Demodulator for use in wireless communications and receiver, method and terminal using it

#38
20060045216
2006-03-02

Apparatus and method for automatic frequency correction for a receiver system

#39
20060002491
2006-01-05

IF FSK receiver

#40
20050286660
2005-12-29

Digital frequency determining apparatus and methods using matched filters

#41
20050207515
2005-09-22

Digital demodulation

#42
20050137815
2005-06-23

Digital frequency measurement system and method with automatic frequency control

#43
20050089120
2005-04-28

FSK demodulator system and method

#44
16058958
2019-11-05

Frequency-scalable NLTL-based mm-wave vector signal de-modulator